diff --git a/UefiCpuPkg/Include/Guid/MmAcpiS3Enable.h b/UefiCpuPkg/Include/Guid/MmAcpiS3Enable.h
new file mode 100644
index 0000000000..8c1655914e
--- /dev/null
+++ b/UefiCpuPkg/Include/Guid/MmAcpiS3Enable.h
@@ -0,0 +1,34 @@
+/** @file
+  This file defines ACPI_S3_ENABLE structure which indicates to x86 standalone MM whether S3 is enabled.
+
+  Copyright (c) 2024, Intel Corporation. All rights reserved.<BR>
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef MM_ACPI_S3_ENABLE_H_
+#define MM_ACPI_S3_ENABLE_H_
+
+///
+/// The GUID of the MmAcpiS3Enable GUIDed HOB.
+///
+#define MM_ACPI_S3_ENABLE_HOB_GUID \
+  { \
+    0xe7402821, 0x2654, 0x4c1b, {0x99, 0x0e, 0x04, 0x8f, 0x8d, 0x82, 0xcf, 0x67}  \
+  }
+
+///
+/// The structure defines the data layout of the MmAcpiS3Enable GUIDed HOB.
+///
+typedef struct {
+  ///
+  /// Whether ACPI S3 is enabled.
+  /// The value shall match with the PcdAcpiS3Enable.
+  ///
+  BOOLEAN    AcpiS3Enable;
+} MM_ACPI_S3_ENABLE;
+
+extern EFI_GUID  gMmAcpiS3EnableHobGuid;
+
+#endif
diff --git a/UefiCpuPkg/UefiCpuPkg.dec b/UefiCpuPkg/UefiCpuPkg.dec
index 5ae4af3e36..2cabf5fc03 100644
--- a/UefiCpuPkg/UefiCpuPkg.dec
+++ b/UefiCpuPkg/UefiCpuPkg.dec
@@ -117,6 +117,9 @@
   ## Include/Guid/MmCpuSyncConfig.h
   gMmCpuSyncConfigHobGuid        = { 0x8b90bd26, 0xe4f9, 0x45c2, { 0x92, 0xa2, 0x9e, 0xac, 0xe6, 0x0e, 0x9d, 0xcc }}
 
+  # Include/Guid/MmAcpiS3Enable.h
+  gMmAcpiS3EnableHobGuid         = { 0xe7402821, 0x2654, 0x4c1b, { 0x99, 0x0e, 0x04, 0x8f, 0x8d, 0x82, 0xcf, 0x67 }}
+
 [Protocols]
   ## Include/Protocol/SmmCpuService.h
   gEfiSmmCpuServiceProtocolGuid   = { 0x1d202cab, 0xc8ab, 0x4d5c, { 0x94, 0xf7, 0x3c, 0xfc, 0xc0, 0xd3, 0xd3, 0x35 }}